Eleco PLC 24 March 2005 Notification of Major Interest in Shares Eleco plc, the Building Systems and Construction Software Group announces that Allen & Company Incorporated has purchased 2,852,828 ordinary shares of 10 pence each in the company at a price of 30 pence per share, representing 5.81% of the issued share capital of Eleco plc. Herbert Allen, President and Chief Executive Officer of Allen & Company Incorporated, accordingly now has an interest in a total holding of 4,552,828 shares in Eleco plc, representing 9.27% of the company's issued share capital. Contact for queries NAME: LAURENCE HOLDCROFT TELEPHONE: 01920 443830 This information is provided by RNS The company news service from the London Stock Exchange